As is the case with every Microsoft content release nowadays, with free content comes paid for content. Team 17 has released 3 new levels/backgrounds (space, hell, and jungle) of which only space is free. You'll be able to pick up the others for 150 MS points. You'll also be able to grab the new sound pack for free which offers a lot more voices to choose from. There's some other gamer picture stuff etc. that costs some points, but who really cares about all that stuff? Also I was right about Mad Tracks; that's out today.